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CERN Discovers New Baryon, Boosts Particle Catalog to 80

3/18/2026

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Summary

Story summary

Researchers at CERN's Large Hadron Collider (LHC) announced the discovery of a new baryon composed of two charm quarks and one down quark at the Moriond conference.
The particle weighs about four times as much as a proton.
The particle decays rapidly.
The result shows 7-sigma significance, surpassing the 5-sigma threshold for discovery.
The finding increases the LHC hadron catalog to 80 and deepens understanding of quantum chromodynamics.

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Story summary

Researchers at CERN's Large Hadron Collider (LHC) announced the discovery of a new baryon composed of two charm quarks and one down quark at the Moriond conference.
The particle weighs about four times as much as a proton.
The particle decays rapidly.
The result shows 7-sigma significance, surpassing the 5-sigma threshold for discovery.
The finding increases the LHC hadron catalog to 80 and deepens understanding of quantum chromodynamics.